• Title/Summary/Keyword: 몰리브덴 실리사이드

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The Effect of Rapid Consolidation of Nanostructured MoSi2-SiC Composite on its Mechanical Properties (나노구조 몰리브덴늄실리사이드-실리콘카바이드 복합재료의 급속소결과 기계적 성질)

  • Ko, In-Yong;Chae, Seung-Myoung;Shon, In-Jin
    • Korean Journal of Metals and Materials
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    • v.48 no.5
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    • pp.417-423
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    • 2010
  • A dense nanostructured MoSi$_{2}$-SiC composite was synthesized by a pulsed current activated combustion synthesis method within 2 min of one step from mechanically activated powders of Mo$_{2}$C and Si. Simultaneous combustion synthesis and consolidation were accomplished under the combined effects of a pulsed current and mechanical pressure. Highly dense MoSi$_{2}$-SiC with a relative density of up to 98% was produced under simultaneous application of an 80 MPa pressure and pulsed current. The average grain size and mechanical properties of the composite were investigated.

Fabrication and Mechanical Properties of $MoSi_2$ Based Composites ($MoSi_2$ 복합재료의 제조 및 기계적 특성)

  • Park, Yi-Hyun;Lee, Sang-Pill;Lee, Sung-Eun;Jin, Joon-Ok;Kim, Sa-Woong;Lee, Jin-Kyung;Yoon, Han-Ki
    • Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
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    • 2003.05a
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    • pp.289-293
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    • 2003
  • This study dealt with the characterization of $MoSi_2$ based composites containing three types of additive materials such as SiC, $NbSi_2\;and\;ZrO_2$ particles have been investigated, based on the detailed examination of their microstructures and fracture surfaces. The effects of reinforcing materials on the high temperature strength of $MoSi_2$ based composites have been also examined. $MoSi_2$ based composites were fabricated by the hot press process under the vacuum atmosphere. The volume fraction of reinforcing materials in the composite system was fixed as 20 %. The microstructures and the mechanical properties of $MoSi_2$ based composites were investigated by means of SEM, EDS, XRD and three point bending test.

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